SMSL
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The SMSL H200 is the final chapter of SMSL's acclaimed 200 Series — a fully balanced discrete headphone amplifier and preamplifier engineered for audiophiles who demand the lowest noise floor and the most faithful signal reproduction. Built around the proprietary PLFC+ circuit architecture with a custom toroidal transformer power supply, the H200 delivers an extraordinary THD+N of 0.00007% and a 131dB SNR, setting a new benchmark at its price point.
Fully Balanced PLFC+ Circuit THD+N 0.00007% SNR 131dB 4W Balanced Output 4.4mm + 6.35mm Outputs 3-Level Gain (L/M/H) Pre-Amplifier Output Custom Toroidal Transformer CNC Full Aluminum Chassis 200 × 175 × 47.9 mm
Fully Balanced Discrete PLFC+ Circuit Design
Unlike conventional integrated chip solutions, the H200's PLFC+ circuit is built entirely from carefully selected discrete components, maintaining a true balanced signal path from input to output. This eliminates common-mode interference and preserves the most authentic musical dynamics, texture, and fine detail.
Ultra-Low Distortion & High Resolution Performance
With a THD+N of just 0.00007% at 1kHz/150Ω and a 131dB SNR, the H200 achieves a virtually inaudible noise floor. The ultra-wide frequency response of 20Hz – 100kHz (−0.5dB) ensures every nuance in high-resolution recordings is faithfully reproduced.
Custom Toroidal Transformer Power Supply
A specially designed toroidal transformer powers the digital and analog circuits separately, preventing digital noise from contaminating the audio signal. The result is an exceptionally clean, quiet background — even under demanding dynamic passages.
Three-Level Gain Switch (Low / Medium / High)
Selectable gain levels let you match the H200 to any headphone:
— Low Gain: Optimized for sensitive IEMs, ultra-quiet background
— Medium Gain: Ideal for most full-size headphones
— High Gain: Powerful drive for high-impedance and low-sensitivity flagship planars
Pre-Amplifier Output Function
The H200 doubles as a high-quality preamplifier with both balanced (XLR) and unbalanced (RCA) pre-outputs, enabling direct connection to active speakers or power amplifiers for a complete desktop system.
Relay-Controlled Volume & FB-DC Protection
Volume is controlled via relay for precise channel matching and longevity. The FB-DC circuit design, combined with DC protection, over-voltage protection, and over-current protection, provides comprehensive safety for both the amplifier and your headphones.
CNC One-Piece Full Aluminum Chassis
Machined from a single block of aluminum alloy via high-precision CNC, the H200's joint-free, gapless construction fundamentally eliminates resonant interference. The compact 200 × 175 × 47.9 mm chassis combines premium metallic texture with a clean, streamlined desktop aesthetic.
| Inputs | |
| Input Type | Balanced (XLR), Unbalanced (RCA) |
| Input Impedance | 47kΩ |
| Headphone Outputs | |
| Output Connectors | 4.4mm Balanced, 6.35mm Unbalanced |
| Output Power — Balanced (4.4mm) | 4W @ 16Ω / 5W @ 32Ω / 1000mW @ 300Ω / 500mW @ 600Ω |
| Output Power — Unbalanced (6.35mm) | 2W @ 16Ω / 2.5W @ 32Ω / 300mW @ 300Ω / 150mW @ 600Ω |
| AMP Output Impedance | Near 0Ω |
| Pre-Amplifier Outputs | |
| Pre-Output Type | Balanced (XLR), Unbalanced (RCA) |
| Pre-Output Impedance | Balanced: 44Ω / Unbalanced: 22Ω |
| Performance | |
| THD+N | 0.00007% (1kHz, 150Ω) |
| SNR | 131dB |
| Dynamic Range | 131dB |
| Frequency Response | 20Hz – 100kHz (−0.5dB) |
| Gain Settings | |
| Gain — Balanced | Low: −3.5dB / Medium: +6dB / High: +19.7dB |
| Gain — Unbalanced | Low: −9.5dB / Medium: 0dB / High: +13.7dB |
| General | |
| Power Consumption | <60W |
| Dimensions (W × H × D) | 200 × 47.9 × 174.5 mm |
| Weight | 1.2 kg / 2.65 lbs |
| Chassis Material | CNC Full Aluminum Alloy |
A new tariff system will take effect across all 27 EU member states starting 1 July 2026. The EU is abolishing the duty exemption for low-value parcels — all goods entering the EU will now be subject to customs duties, including a fixed duty of €3 per HS tariff code category for IOSS-declared goods under €150.
A handling surcharge of USD $5 has been applied to all standard shipments to EU countries on orders under $100. Orders over 100 qualify for free expedited shipping.
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